how to put this in excel ? step by step

You would like to have a loan from a bank for 15 years. You are to make monthly payments at the end of the month at an interest rate of 6% per year, or 0.5% per month (6% / 12 = 0.5%). If the loan amount is $175,000 and you would like to keep $50,000 as a balloon payment at the end of the 15years, what monthly payment will you have to make